Worst air pollution Olympic Stadium - Montréal, today and tomorrow
Today (16 July): Air quality in Olympic Stadium is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 36.7/100).
Tomorrow (17 July 2026): Air quality in Olympic Stadium is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (O3: 30.9/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Olympic Stadium's air quality benefits from its position within the extensive Parc Maisonneuve and Botanical Garden green space, providing natural buffering from surrounding east-end Montréal traffic.
Today - 16 July | Pollution peaks at 07:00
AQI:
Fair
36.7/100
PM2.5 (fine particles):
Good
5.1/100
PM10 (coarse particles):
Good
2.0/100
NO2 (nitrogen dioxide):
Good
4.8/100
O3 (ozone):
Fair
36.7/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
4.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 08:00
AQI:
Fair
30.9/100
PM2.5 (fine particles):
Good
6.4/100
PM10 (coarse particles):
Good
2.3/100
NO2 (nitrogen dioxide):
Good
4.7/100
O3 (ozone):
Fair
30.9/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
5.5/100
Other Landmarks in Montréal
Sports venues in Montréal
Frequently Asked Questions
Is air quality bad in Olympic Stadium right now?
On 16 July 2026, overall air quality in Olympic Stadium is fair. AQI is the main air quality indicator at 36.7/100. Pollution peaks around 7:00 AM (O3: 36.7/100).
Will air quality be worse tomorrow in Olympic Stadium?
On 17 July 2026, air quality conditions in Olympic Stadium will be similar to today, with AQI forecast at fair at 30.9/100. Pollution peaks around 8:00 AM (O3: 30.9/100).
When is air pollution at its worst in Olympic Stadium?
Olympic Stadium's air quality varies through the year, influenced by its eastern Montréal setting near the Botanical Garden. The warmest months typically see the poorest air quality, with heat and heavy traffic driving up smog levels on windless days, whereas fall and winter tend to bring cleaner, more variable conditions. Local monitoring stations typically flag the sharpest changes during still, hot afternoons in July and August.
Are air quality levels in Olympic Stadium based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app